EP0046801B1 - Packer arrangements for oil wells and the like - Google Patents
Packer arrangements for oil wells and the like Download PDFInfo
- Publication number
- EP0046801B1 EP0046801B1 EP81900883A EP81900883A EP0046801B1 EP 0046801 B1 EP0046801 B1 EP 0046801B1 EP 81900883 A EP81900883 A EP 81900883A EP 81900883 A EP81900883 A EP 81900883A EP 0046801 B1 EP0046801 B1 EP 0046801B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring
- packer
- recess
- cross sectional
- peripheral surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003129 oil well Substances 0.000 title description 2
- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 230000000153 supplemental effect Effects 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
- E21B33/1212—Packers; Plugs characterised by the construction of the sealing or packing means including a metal-to-metal seal element
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
- E21B33/1295—Packers; Plugs with mechanical slips for hooking into the casing actuated by fluid pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/939—Containing metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/935—Seal made of a particular material
- Y10S277/939—Containing metal
- Y10S277/941—Aluminum or copper
Definitions
- the invention relates to technology for subterranean recovery of oil and the like, and more particularly to seal arrangements for oil wells and the like, namely a packer according to the first part of claim 1.
- packers according to the first part of claim 1 have already become known per se, namely:
- a typical seal arrangement is of the baffle type, in which one or more cylinders are placed in longitudinal compression.
- Typical materials for these types of deformable seals are elastomers and special components such as graphite, asbestos, and wire.
- the packer In oil recovery enhancement techniques, and in wells used in geothermal production, the packer frequently must seal the casing or tube annulus under conditions of elevated temperature, high pressure and corrosive surface environment.
- the invention is specifically using a metallic ring exhibiting. suitable plastic deformability characteristics allowing to realize the sealing effect by means of an extrusion process performed on the ring itself.
- hydraulic fluid is flowed into the recess to expand the ring radially outwardly and force its outer peripheral surface through the circumferential recess opening and into annular sealing engagement with the opposed surface of the casing.
- Supplemental sealing enhancement means in the form of surface treatment or added material may be applied to the outer peripheral surface of the metal packer seal ring.
- the packer is a compact device which provides a durable and conformable seal that is particularly useful in harsh subterranean environments where high pressures and high temperatures and corrosive conditions are encountered.
- a casing 10 that extends downwardly from the surface of the ground to an oil reservoir 12 or other subsurface geologic formation. Disposed within casing 10 is an integrated flowing system that includes tubing sections 14, 16 (and other appropriate hardware not shown) and a packer unit 20 that has an upper coupling 22 connected to tubing section 14 and a lower coupling section 24 connected to tubing section 16.
- Casing 10 has an inner diameter of about sixteen centimeters.
- the packer includes a tubular body 26 of heat treated tool steel (e.g., 4140) that is about thirty-eight centimeters in length and defines a through passage 28 about 6.3 centimeters diameter.
- Formed integrally with body 26 is an annular flange 30 that has an outer diameter of about fifteen centimeters and an axial height of about 3.2 centimeters.
- Formed on upper surface 32 is an annular peripheral recess 34 (Fig. 3) which receives sleeve 36; and formed in the lower surface of flange 30 is an inclined annular die surface 38. Seated on flange 30.
- die rings 40, 50 that are secured by nut 54 that is threadedly received on the lower end of tube 26.
- Formed in die ring 40 are two die surfaces 42, 44 each inclined at 7 1/2 degrees.
- Inclined die surface 52 is similarly formed in ring 50.
- a metal ring 60 of trapezoidal cross-sectional configuration is disposed in each recess defined by opposed die surface 38, 42 and 44, 52.
- Each ring has a width or radial dimension of 1.75 centimeter, a height at its inner peripheral surface 62 of 1.25 centimeter, a height at its outer peripheral surface 64 of 0.75 centimeters.
- the upper and lower surfaces 66, 68 of each ring 60 are clamped firmly between the opposed extruding die surfaces 38, 42 and 44, 52 when the die rings 40, 50 are clamped against die flange 30 by nut 54.
- Body 26 has an aperture 70 at its upper end through which extends a length of 0.65 centimeter stainless steel tubing 72 that has a burst strength of about 40,000 psi and that is connected by fitting 74 to flow passage 82 formed in flange 30.
- Coupling 22 is welded to body 26 and has internal threads 76 that engage tubing section 14 while the lower end of body 26 has external threads 78 on which coupling 24 is received.
- Threaded hole 80 in upper surface 32 of flange 30 receives coupling 74.
- Passage 82 extends to an outlet in cylindrical die recess surface 84 (which has a diameter of about 10.8 centimeters).
- Extrusion surface 38 is inclined downwardly in an outward direction at an angle of 7 1/2 degrees and extends to lip 86.
- Ring 40 has similar annular axially extending surfaces 90, 92 in which are formed ports of through passage 88, and similar annular extrusion lips 94, 96.
- Ring 50 has a similar annular wall 100 at the inner edge of inclined extrusion surface 52 and an annular lip 102 at the outer periphery of extrusion surface 52.
- seals 48 in grooves 46 seal the joints between the rings and two annular recesses of trapezoidal configuration are defined, each of the same shape and each of about 1.9 centimeter radial length.
- a metal ring 60 Disposed in each recess is a metal ring 60, the inclined surfaces 66, 68.of which are firmly clamped and sealed against the upper and lower extruding surfaces of the recess.
- Hydraulic fluid applied through line 72 and coupling 74 flows through passage 82 and acts against the inner surface 62 of the upper ring 60A and through passage-88 to the lower recess and similarly acts against surface 62 of ring 60B, as indicated by arrows 110.
- each ring is deformed first elastically and then plastically as the ring is forced through the lips of each die in an extrusion action creating a ring of greater diameter and surface area, with an extruded seal ring portion 112 and with outer surface 64 seated against the inner surface 114 of casing 10 as indicated in Figs. 5 and 6.
- the required fluid pressure is a function of the die angle, the necessary radial extension, the ring material, and the ring geometry. Shown in Fig. 7 is a graph indicating the required fluid pressure for aluminum and titanium ring materials as a function of total die angle.
- the packer is designed to withstand a maximum temperature of 343 differential pressure it supports. Where potentially large pressure induced forces act on the seal ly large pressure induced forces act on the seal ring portion 112 at maximum temperatures and for long life situations (greater than one year), a packer fluid 116 can be placed on top of the seal ring 112 to reduce or eliminate the pressure differential across the seal and greatly reduce metal creep effects.
- the hydraulic pressure may be increased if desired by the incorporation in the packer 20 of differential area piston intensifiers between supply tube 72 and passages 82.
- Sealing efficiency can be modified by changing ring geometry, for example, by altering sealing area or changing the outer edge configuration of the ring.
- the addition of serration 120 to surface 64, or other surface treatments allows the ring to seal effectively against irregular casing surfaces.
- the initial ring geometry, the die angle, or the ring thickness the effective seal area can be adjusted, and the deployed seal ring 112 can be strengthened by work hardening effects. Appropriate preventive means can be used to minimize environmental effects, such as ring corrosion.
- the packer arrangement is a compact device with a minimum of components which provides a durable and conformable seal that is particularly useful in harsh environments.
- Another seal arrangement is shown in Figs. 8 and 9. Similar components in that figure have been identified with primed reference numerals, for example, casing 10'.
- the seal ring 60' is a composite of a titanium ring 130 with parallel upper and lower faces 132, 134 disposed in sliding fit between parallel radially extending zero angle die surfaces; and a heat shrunk aluminum ring 136 disposed in an annular recess in the outer peripheral surface 64'.
- Aluminum insert 136 carries serrations 138 that projects beyond the outer face 64' of the titanium ring 130.
- An inner ring 140 of aluminum (1100-0) of trapezoidal cross-section is positioned inside titanium ring 130 with the outer peripheral surface 142 of ring 140 abutting the inner peripheral surface of ring 130.
- the upper and lower inclined surfaces of ring 140 are seated against extrusion surfaces 38', and 42' of the die members.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Earth Drilling (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US125981 | 1980-02-29 | ||
US06/125,981 US4302018A (en) | 1980-02-29 | 1980-02-29 | Packer arrangements for oil wells and the like |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0046801A1 EP0046801A1 (en) | 1982-03-10 |
EP0046801A4 EP0046801A4 (en) | 1984-04-04 |
EP0046801B1 true EP0046801B1 (en) | 1986-12-10 |
Family
ID=22422385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81900883A Expired EP0046801B1 (en) | 1980-02-29 | 1981-02-23 | Packer arrangements for oil wells and the like |
Country Status (6)
Country | Link |
---|---|
US (1) | US4302018A (ja) |
EP (1) | EP0046801B1 (ja) |
JP (1) | JPS6364598B2 (ja) |
BR (1) | BR8107089A (ja) |
CA (1) | CA1155391A (ja) |
WO (1) | WO1981002457A1 (ja) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4589484A (en) * | 1984-10-11 | 1986-05-20 | Foster-Miller, Inc. | Deployment system |
US4697829A (en) * | 1985-07-31 | 1987-10-06 | R J Pond Limited | Pipe connection joints |
US5172921A (en) * | 1985-09-16 | 1992-12-22 | Flutron Ab | Sealing device |
US4697640A (en) * | 1986-01-16 | 1987-10-06 | Halliburton Company | Apparatus for setting a high temperature packer |
FR2611238B1 (fr) * | 1987-02-24 | 1989-04-28 | Pajaud Pierre | Piston bloquant le puits juste au-dessus de la source pour permettre son debouchage avec la pression (puits fore) |
FR2646876B2 (fr) * | 1987-02-24 | 1991-07-12 | Pajaud Pierre | Piston bloquant le puits juste au-dessus de la source pour permettre son debouchage avec la pression (puits fore) |
US4749035A (en) * | 1987-04-30 | 1988-06-07 | Cameron Iron Works Usa, Inc. | Tubing packer |
US4771828A (en) * | 1987-04-30 | 1988-09-20 | Cameron Iron Works, Usa, Inc. | Wellhead seals |
SE8800373L (sv) * | 1988-02-05 | 1989-08-06 | Torstensson Bengt Arne | Anordning foer tillslutning av roer och borrhaal |
DE3815455C2 (de) * | 1988-05-06 | 1994-10-20 | Freudenberg Carl Fa | Aufblasbare Dichtung |
US4911245A (en) * | 1989-03-10 | 1990-03-27 | Vetco Gray Inc. | Metal seal with soft inlays |
US5095991A (en) * | 1990-09-07 | 1992-03-17 | Vetco Gray Inc. | Device for inserting tubular members together |
AU6227994A (en) * | 1993-03-04 | 1994-09-26 | Baker Hughes Incorporated | Straight bore metal-to-metal wellbore seal apparatus and method of sealing in a wellbore |
GB9411865D0 (en) * | 1994-06-14 | 1994-08-03 | Ssr International Ltd | Wireline plug |
US5660396A (en) * | 1994-10-26 | 1997-08-26 | Tebel--MKT B.V. | Whey draining apparatus having sealing element |
US5901787A (en) * | 1995-06-09 | 1999-05-11 | Tuboscope (Uk) Ltd. | Metal sealing wireline plug |
DE19734213A1 (de) * | 1997-08-07 | 1999-02-18 | Saarbergwerke Ag | Zusammenbaufähiges Dichtungssystem |
EP1582274A3 (en) * | 1998-12-22 | 2006-02-08 | Weatherford/Lamb, Inc. | Procedures and equipment for profiling and jointing of pipes |
US6513600B2 (en) * | 1999-12-22 | 2003-02-04 | Richard Ross | Apparatus and method for packing or anchoring an inner tubular within a casing |
US7661470B2 (en) * | 2001-12-20 | 2010-02-16 | Baker Hughes Incorporated | Expandable packer with anchoring feature |
US6793022B2 (en) * | 2002-04-04 | 2004-09-21 | Halliburton Energy Services, Inc. | Spring wire composite corrosion resistant anchoring device |
US7121338B2 (en) | 2004-01-27 | 2006-10-17 | Halliburton Energy Services, Inc | Probe isolation seal pad |
US20070013146A1 (en) * | 2005-07-14 | 2007-01-18 | Gariepy James A | Sealing ring and method |
NO330724B1 (no) * | 2007-03-09 | 2011-06-27 | I Tec As | Anordning ved tetnings- og forankringsorgan for bruk i rorledninger |
GB0712345D0 (en) * | 2007-06-26 | 2007-08-01 | Metcalfe Paul D | Downhole apparatus |
EP2432969B1 (en) | 2009-05-20 | 2018-06-20 | Halliburton Energy Services, Inc. | Formation tester pad |
US8256538B1 (en) * | 2011-11-10 | 2012-09-04 | John Mayn Deslierres | Containment system for oil field riser pipes |
US9175533B2 (en) | 2013-03-15 | 2015-11-03 | Halliburton Energy Services, Inc. | Drillable slip |
JP6417208B2 (ja) * | 2014-12-22 | 2018-10-31 | 原工業株式会社 | 穿孔ロッド挿入口元の止水装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US553738A (en) * | 1896-01-28 | Metallic packing | ||
US2732268A (en) * | 1956-01-24 | duval | ||
GB186594A (en) * | 1921-09-30 | 1923-04-26 | Vickers Electrical Co Ltd | Improved packing for shafts |
US2192805A (en) * | 1936-03-18 | 1940-03-05 | Seamark Lewis Mervyn Cecil | Casing head equipment for bore holes or wells |
US2237709A (en) * | 1940-02-05 | 1941-04-08 | Elmo O Lowe | Blowout preventer |
US2529744A (en) * | 1946-05-18 | 1950-11-14 | Frank J Schweitzer | Choking collar blowout preventer and stripper |
US2701615A (en) * | 1951-03-16 | 1955-02-08 | Byron Jackson Co | Well bore packer and actuating means therefor |
US2780294A (en) * | 1955-05-02 | 1957-02-05 | John Stahl | Packer assembly |
US3298719A (en) * | 1966-05-09 | 1967-01-17 | Granville Phillips Company | Ultra-high vacuum coupling and gasket subassembly therefor |
GB1377807A (en) * | 1973-05-25 | 1974-12-18 | Hansard G G | Fluid bearings |
FR2239159A5 (en) * | 1973-07-27 | 1975-02-21 | Cefilac | Inflatable shaft seal ring - forces non-turning disc against rotating seal to provide a seal |
US4178020A (en) * | 1977-12-15 | 1979-12-11 | Big-Inch Marine Systems, Inc. | Locking slip joint and method of use |
SE413200B (sv) * | 1978-08-14 | 1980-04-28 | Asea Atom Ab | Tetningsanordning for tillfellig tryckavtetning |
-
1980
- 1980-02-29 US US06/125,981 patent/US4302018A/en not_active Expired - Lifetime
-
1981
- 1981-02-23 EP EP81900883A patent/EP0046801B1/en not_active Expired
- 1981-02-23 WO PCT/US1981/000216 patent/WO1981002457A1/en active IP Right Grant
- 1981-02-23 BR BR8107089A patent/BR8107089A/pt unknown
- 1981-02-23 JP JP56501143A patent/JPS6364598B2/ja not_active Expired
- 1981-02-27 CA CA000371919A patent/CA1155391A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
WO1981002457A1 (en) | 1981-09-03 |
BR8107089A (pt) | 1982-01-05 |
CA1155391A (en) | 1983-10-18 |
US4302018A (en) | 1981-11-24 |
EP0046801A4 (en) | 1984-04-04 |
EP0046801A1 (en) | 1982-03-10 |
JPS57501485A (ja) | 1982-08-19 |
JPS6364598B2 (ja) | 1988-12-13 |
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